Summary:
ZIP code 03848, which includes Kingston, New Hampshire, has one high school: Sanborn Regional High School, serving grades 9–12 with 448 students as part of the Sanborn Regional School District. The school has a 12.8:1 student-teacher ratio and a reported free or reduced-price lunch participation rate of 10.71%, offering families in the area a relatively small high school setting.
Sanborn Regional High School has several encouraging outcomes for students and families. Its 90.9% graduation rate is higher than New Hampshire’s 87.0% average, while its 1.6% dropout rate is lower than the statewide 2.3% rate. Reading is the school’s strongest academic area: 61% of students were proficient in 2025–2026, compared with 58% in the district and 55% statewide. The school’s 11th-grade SAT reading result was 61%, nearly matching the state’s 62%. These results suggest that students generally remain engaged through graduation and perform comparatively well in reading.
The most important concern is mathematics, where 21% of students were proficient, compared with 50% in the district and 44% statewide. Science performance was also below comparison levels at 28%, versus 37% in the district and 38% statewide. Reading proficiency declined from 66% to 61% over the last year, while mathematics improved only slightly and science dipped slightly. At the same time, the school’s ranking improved from the 24th percentile in 2023–2024 to the 39th percentile in 2025–2026, and its rating rose from one star to two. Families may therefore view Sanborn Regional High School as a school with strong completion outcomes and reading performance, but one that needs focused improvement in mathematics and science.
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